Sleep and neuropsychiatric disorders

Neuropsychiatric Dimensions of Movement Disorders in Sleep

With the change of state from wakefulness to sleep, muscle activity and tone decrease, and they are lost completely during rapid eye movement (REM) sleep. Therefore, one would anticipate few, if any, movement problems associated with sleep. In spite of these physiologic changes, however, normal sleep is not totally free of movement. The average sleeper moves about 40 to 50 times a night and thi...

Gut Microbiota and Neuropsychiatric Disorders

Bilingualism and neuropsychiatric disorders

A range of psychotic manifestations (including auditory hallucinations, delusions, conceptual disorganization, anxiety, and depression) have been reported to occur in either one or all of a patient’s languages. The reasons why one of the patient’s languages may be more affected than others is investigated. Whether a particular language should be used in psychotherapy, and if so, which one, is a...

Reelin and Neuropsychiatric Disorders

Proper neuronal migration and laminar formation during corticogenesis is essential for normal brain function. Disruption of these developmental processes is thought to be involved in the pathogenesis of some neuropsychiatric conditions. Especially, Reelin, a glycoprotein mainly secreted by the Cajal-Retzius cells and a subpopulation of GABAergic interneurons, has been shown to play a critical r...

[Homocysteine and neuropsychiatric disorders].

The author presents an overview of the current literature on homocysteine as a risk factor for neuropsychiatric disorders. The databases MEDLINE, Current Contents and EMBASE were searched (between 1966 and 2002) for English language publications with the key words 'Homocysteine' and 'Stroke'; 'Alzheimer Disease'; 'Cognitive Impairment'; 'Epilepsy'; 'Depression'; or 'Parkinson's disease'. Indivi...